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Best Answer Key Apps

225+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated May 2026

Every iPhone needs a few good answer key apps. We benchmark 225+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Answer Key Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Gauth: AI Study CompanionGauth: AI Study CompanionFree4.8★ (1.4M)NoYesJul 2026
2Ai Homework Helper: Scan SolveAi Homework Helper: Scan SolveFree4.7★ (20K)NoYesJul 2026
3Pic Answer - AI SolverPic Answer - AI SolverFree4.7★ (3.3K)YesYesJul 2026
4Quizard AI: Homework HelperQuizard AI: Homework HelperFree4.7★ (57K)YesYesJul 2026
5Brainly: Your Personal TutorBrainly: Your Personal TutorFree4.7★ (284K)YesYesJul 2026
6Question.AI-Math CalculatorQuestion.AI-Math CalculatorFree4.7★ (159K)NoYesJul 2026
7Answer App - Coursology AIAnswer App - Coursology AIFree4.8★ (4.4K)YesYesJul 2026
8Socratic AI - Homework HelperSocratic AI - Homework HelperFree4.7★ (5.1K)YesYesJul 2026

Top Picks for Answer Key

Gauth: AI Study Companion#1

Gauth: AI Study Companion by GAUTHTECH PTE. LTD.

Ask anything, get right answer
Editor's Choice
📚 Education
4.8😊(1.4M ratings)
FreeIn-App Purchases
#17in Education
Gauth: AI Study Companion screenshot 1
Gauth: AI Study Companion screenshot 2
Gauth: AI Study Companion screenshot 3
Gauth: AI Study Companion screenshot 4
Gauth: AI Study Companion screenshot 5
Gauth: AI Study Companion screenshot 6

This AI-powered study companion provides instant, accurate answers and step-by-step explanations for all subjects. It offers a live AI tutor with voice and whiteboard capabilities, and can convert notes into quizzes and flashcards. Get help with homework, writing, and calculations from experts 24/7.

What We Love

  • 🚀 Helpful for homework and understanding concepts
  • 🚀 Provides step-by-step explanations
  • 🚀 Accurate answers most of the time
  • 👍 Free to use with optional premium features

Room to Improve

  • 🐛 Inaccurate answers at times
  • 🐛 Tutors sometimes provide wrong or irrelevant responses
  • 🔒 Paywall for advanced features and tutoring
Ai Homework Helper: Scan Solve#2

Ai Homework Helper: Scan Solve by hossam sherraa

Ai Scanner & Pic Answer
Strong Contender
📚 Education
4.7😊(20K ratings)
FreeIn-App Purchases
Ai Homework Helper: Scan Solve screenshot 1
Ai Homework Helper: Scan Solve screenshot 2
Ai Homework Helper: Scan Solve screenshot 3
Ai Homework Helper: Scan Solve screenshot 4

Instantly get answers to your questions by simply taking a photo. This intelligent app uses AI to recognize text and objects in images, providing accurate information and enabling natural conversations for deeper learning.

What We Love

  • 👍 Helpful for homework and assignments
  • 🚀 Fast and accurate answers
  • 💡 Explains step-by-step solutions
  • 🙌 Saves time and effort

Room to Improve

  • 💰 Limited free usage, requires premium subscription
  • 🐛 Occasional inaccurate or inconsistent answers
  • 🤔 Issues with camera functionality and scanning
Pic Answer - AI Solver#3

Pic Answer - AI Solver by Tech Consolidated INC.

Math Photo Solve your Homework
Worth Considering
📚 Education
4.7😊(3.3K ratings)
FreeAdsIn-App Purchases
Pic Answer - AI Solver screenshot 1
Pic Answer - AI Solver screenshot 2
Pic Answer - AI Solver screenshot 3
Pic Answer - AI Solver screenshot 4
Pic Answer - AI Solver screenshot 5
Pic Answer - AI Solver screenshot 6

This application uses AI to solve homework problems by analyzing photos. It offers instant solutions and interactive chat assistance across multiple academic subjects, aiming to deepen understanding of concepts.

What We Love

  • 🚀 Fast and accurate answers
  • 👍 Helpful for homework and studying
  • 💡 Explains step-by-step solutions
  • 🎓 Improves grades and academic performance

Room to Improve

  • 🐛 Occasional inaccurate answers
  • 💰 Subscription/payment issues
  • 🔄 Inconsistent performance after updates

More Answer Key apps to explore

4
Quizard AI: Homework Helper
Quizard AI: Homework Helper
Quizard AI: Homework Helper
Instant Math Problem Solver
Free

This AI-powered app assists students with homework and studying across various subjects. It offers instant solutions and explanations for math problems by simply taking a photo, helping users prepare for tests and improve their grades.

AI homework answersInstant math problem solverPhoto-based math solutions
📚 Education
(57K)
free with in-app purchases
5
Brainly: Your Personal Tutor
Brainly: Your Personal Tutor
Brainly: Your Personal Tutor
Scan questions & get answers
Free

This app provides 24/7 on-demand tutoring for K-12 students in subjects like math, science, and English. It combines human tutors with AI support to offer step-by-step explanations for homework and test preparation, aiming for guaranteed grade improvement.

24/7 on-demand tutoringHuman tutors and AI supportStep-by-step explanations
📚 Education
(284K)
free with in-app purchases
6
Question.AI-Math Calculator
Question.AI-Math Calculator
Question.AI-Math Calculator
Scan&Solve All Subject Problem
Free

This AI chatbot app provides instant answers to your questions, acts as a personal assistant for research, translates over 140 languages, and offers intelligent writing suggestions. It's designed to simplify information gathering and enhance communication for students, professionals, and anyone seeking knowledge.

Instant AI-powered answersPersonalized research assistant140+ language translation
📚 Education
(159K)
free with in-app purchases
7
Answer App - Coursology AI
Answer App - Coursology AI
Answer App - Coursology AI
Math Photo Solve your Homework
Free

Instantly solve homework problems by taking a photo. Get detailed, step-by-step explanations for subjects like math, science, and history. Also features an AI notetaker and personalized chat support to help you understand complex topics better.

AI homework solverPhoto-based problem solvingStep-by-step explanations
📚 Education
(4.4K)
free with in-app purchases
8
Socratic AI - Homework Helper
Socratic AI - Homework Helper
Socratic AI - Homework Helper
Scan Math Solver
Free

This AI-powered app helps students with homework across various subjects. Simply scan a problem, and receive step-by-step solutions and detailed explanations from multiple study resources.

Photo math problem scannerStep-by-step AI solutionsAll-in-one learning resources
📚 Education
(5.1K)
free with in-app purchases
9
PhotoSolve: Answer Pic Solver
PhotoSolve: Answer Pic Solver
PhotoSolve: Answer Pic Solver
Scan Questions and Get Answer
Free

Instantly solve homework and academic questions by simply taking a photo. Get correct answers with detailed explanations to help you learn and understand any subject. This app acts as a comprehensive learning companion for all your academic queries.

Scan and solve any queryDetailed explanations for learningHomework and assignment assistance
📚 Education
(1.4K)
subscription
10
Nerd AI - Math Problem Solver
Nerd AI - Math Problem Solver
Nerd AI - Math Problem Solver
Homework Scanner & Solver
Free

This AI-powered study companion offers a suite of tools to assist with homework, writing, and learning. It can solve math problems from photos, generate essays, summarize videos and audio, and help with coding and language skills.

Scan and solve math problems with step-by-step explanationsGenerate essays, blogs, and scripts with customizable tone and lengthAI chatbot for interactive learning and question answering
📚 Education
(33K)
free with in-app purchases
11
Answer.AI - Your AI tutor
Answer.AI - Your AI tutor
Answer.AI - Your AI tutor
Scan and ask AI
Free

This AI-powered study companion offers 24/7 academic support, providing step-by-step explanations, personalized study tools, and collaborative learning spaces. It helps learners build confidence and deepen understanding across subjects, with additional resources for college prep and future planning.

AI-powered study companionStep-by-step explanationsPersonalized study tools
📚 Education
(166K)
free with in-app purchases
12
Photomath
Photomath
Photomath
Learn math, step-by-step
Free

Scan any math problem to receive instant, step-by-step explanations and accurate solutions. This app breaks down complex problems into manageable steps, helping users understand the 'how' and 'why' of math. It supports a wide range of math topics, from basic arithmetic to advanced calculus.

Scan math problemsStep-by-step explanationsWord problem solver
📚 Education
(733K)
free with in-app purchases
13
Mathway: Math Problem Solver
Mathway: Math Problem Solver
Mathway: Math Problem Solver
Homework scanner & calculator
Free

Solve math problems instantly by taking a photo or typing your question. Get step-by-step solutions for algebra, graphing, calculus, and more. Understand complex math concepts with unlimited access to answers.

Math problem solverHomework scannerStep-by-step solutions
📚 Education
(425K)
free with in-app purchases
14
Studybay- homework & answers
Studybay- homework & answers
Studybay- homework & answers
Pro tutoring help for study
Free

Connect with verified academic experts for homework help and tutoring across all subjects. Get instant, affordable assistance with assignments, quizzes, and projects from professionals ready 24/7. Improve your grades with detailed explanations and timely support.

Verified academic expertsHomework assistanceOnline tutoring
📚 Education
(662)
free with in-app purchases
15
Course Hero: AI Homework Help
Course Hero: AI Homework Help
Course Hero: AI Homework Help
Scan & Solve Math Questions
Free

Access a vast library of study materials and get instant homework help from expert tutors. Solve math problems with a quick scan or by typing them in, and receive step-by-step explanations to understand concepts better and improve your grades.

AI homework helpMath solver with step-by-step solutionsExtensive library of textbook solutions
📚 Education
(66K)
free with in-app purchases
16
Chegg Study - Homework Help
Chegg Study - Homework Help
Chegg Study - Homework Help
Expert Answers & College App
Free

This app provides homework help and personalized study support for millions of students across 80 subjects. Access millions of explained solutions, flashcards, and expert Q&A to master tough concepts and prepare for exams. Utilize AI-powered solutions for quicker assistance.

Step-by-step explained solutionsFlashcards for subjectsExpert Q&A responses
📚 Education
(205K)
free with in-app purchases
17
Solvely - AI Study Tools
Solvely - AI Study Tools
Solvely - AI Study Tools
Math Solver & Homework Helper
Free

This app provides AI-powered academic assistance across various subjects. It offers step-by-step solutions, note-taking, and study material conversion to help students understand concepts better and improve their academic performance.

Accurate AI answers with step-by-step explanationsPhoto to answer functionality for problemsSupport for all subjects including Math, Science, and Humanities
📚 Education
(39K)
free with in-app purchases
18
Homework AI - Math Helper
Homework AI - Math Helper
Homework AI - Math Helper
Scan & Solve - Answer Anything
Free

This app assists with academic tasks by solving math problems, answering general questions, generating emails, and providing writing support. It aims to reduce homework struggles and boost productivity through accurate, step-by-step solutions and versatile assistance.

Math problem solver with step-by-step solutionsGeneral question answeringEmail generation
📚 Education
(4.9K)
free with in-app purchases
19
Solvo: AI Homework Helper
Solvo: AI Homework Helper
Solvo: AI Homework Helper
Scan to Solve Math Problems
Free

This AI-powered app helps students with homework across various subjects. It offers step-by-step solutions for math, science problems, and can create study flashcards. Users can also get summaries of documents and web pages.

Scan and solve math, chemistry, physics, biology problemsStep-by-step learning explanationsAI flashcard creation
📚 Education
(5.4K)
freemium
20
Quora
Quora
Quora
Questions, Answers, and More
Free

This platform allows users to ask questions on any topic and receive insightful answers from a global community. Discover personalized content, follow subjects of interest, and share your own expertise to contribute to a vast repository of knowledge.

Ask questions on any subjectReceive helpful answersFollow topics and browse content
📡 News
(444K)
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FAQ about Answer Key

What are the best answer key apps for iPhone?
Gauth: AI Study Companion tops our answer key apps ranking as of May 2026, with a 4.8-star average from 1.4M App Store ratings, and it's free to download.
Yes — 20 of the top answer key apps we rank are free to download, including Gauth: AI Study Companion and Ai Homework Helper: Scan Solve.
Gauth: AI Study Companion has no ads and offers in-app purchases, according to its App Store listing as of May 2026.
We track 225+ answer key apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
Gauth is an AI study companion that provides instant, accurate answers and step-by-step explanations for homework problems across various subjects. It also offers AI tutoring, study tools, and access to real experts for additional help.
Key features include AI-powered accurate answers with animated instructions, an AI Live Tutor with voice and whiteboard, an AI Study Converter to create quizzes and flashcards from notes, and a study toolbox with reading, writing, and calculator functions.